The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 1989
Filed:
Mar. 18, 1988
Rainer Schlecker, Bissersheim, DE;
Klaus Ruebsamen, Neustadt, DE;
BASF Aktiengsellschaft, Ludwigshafen, DE;
Abstract
Benzofuran derivatives of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen, alkyl or phenylalkyl, where alkyl in each case is of 1 to 4 carbon atoms, R.sup.3 and R.sup.4 are identical or different and are each hydrogen or C.sub.1 -C.sub.4 -alkyl or together form a 3-membered to 5-membered chain which may be interrupted by an oxygen atom or an NR.sup.1 group, X is --CO--CH.dbd.CH--, --CO--CH.sub.2 --CH.sub.2 --or --CHOH--CH.sub.2 --CH.sub.2 --, n is 2 or 3 and Het is an aromatic 5-membered or 6-membered ring which contains a hetero atom from the group consisting of N, O and S and may additionally contain a (further) N atom, in which the ring may be substituted by C.sub.1 -C.sub.4 -alkyl, fluorine, chlorine, bromine, NH.sub.2 or NR.sup.1 R.sup.2, where R.sup.1 and R.sup.2 have the abovementioned meanings, the use of these benzofuran derivatives for the preparation of pharmaceutical, in particular antiulcerogenic, agents, and these agents themselves are described.